Unexpected sectionWideCheckWork behavior with weight="0"

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1

As I wrote in this thread I have been in the habit of using sectionWideCheckWork liberally when I want the units to appear right next to the answer box instead of after a CheckWork box.

But I did this as part of an optional hint, so I wanted the weight to be 0 in case students didn’t need the hint

<div sectionWideCheckWork colorAnswersSeparately>
  <p>
    What temperature corresponds to <m>65</m> chirps per minute?
    <answer weight="0">
      <shortDescription>temperature at 65 chirps per minute</shortDescription>56.25
    </answer><m>^\circ F</m>
  </p>
  <p>
    What temperature corresponds to <m>75</m> chirps per minute?
    <answer weight="0">
      <shortDescription>temperature at 75 chirps per minute</shortDescription>58.75
    </answer><m>^\circ F</m>
  </p>
</div>

And the Check Work button shows correct every time even when the individual answers are wrong, or even blank. The answer boxes are red, but the Check Work is green and says Correct, and that seemed to override the red outline in students’ minds when they looked at it. Perhaps that’s the desired behavior but it was unexpected to me!

I can get almost what I wanted with

<p>
  <mathInput name="tempatchirps65" forAnswer="$hintanswer">
    <label>What temperature corresponds to <m>65</m> chirps per minute?</label>
  </mathInput><m>^\circ F</m>
</p>
<p>
  <mathInput name="tempatchirps75" forAnswer="$hintanswer">
    <label>What temperature corresponds to <m>75</m> chirps per minute?</label>
  </mathInput><m>^\circ F</m>
</p>
<answer name="hintanswer" weight="0" matchPartial>
  <award><when>$tempatchirps65=56.25 and $tempatchirps75 = 58.75</when></award>
</answer>

instead, but the individual answer boxes are gold when the score is 50% instead of showing which one is right or wrong. Still, for an optional hint, I’m probably okay with that.

2

If you have a problem or document with no answers in it, you automatically get 100% credit for it. (We use that to give credit for viewing a page or skipping through an explanation in a cascade.)

Apparently, having an answer with weight 0 is classified in the same way. I’m not sure how to work around that…

You could use colorInputsSeparately to get what you want, though it currently requires writing separate awards for each input.

<p>
  <mathInput name="tempatchirps65" forAnswer="$hintanswer">
    <label>What temperature corresponds to <m>65</m> chirps per minute?</label>
  </mathInput><m>^\circ F</m>
</p>
<p>
  <mathInput name="tempatchirps75" forAnswer="$hintanswer">
    <label>What temperature corresponds to <m>75</m> chirps per minute?</label>
  </mathInput><m>^\circ F</m>
</p>
<answer name="hintanswer" weight="0" matchPartial colorInputsSeparately numAwardsCredited="2">
  <award credit="0.5"><when>$tempatchirps65=56.25</when></award>
  <award credit="0.5"><when>$tempatchirps75 = 58.75</when></award>
</answer>